Description
CarBahn Performance Stage 3 ECU Software Power Package is engineered for the BMW F9X M8 and M8 Competition, providing a comprehensive performance upgrade for the S63 engine platform. The package combines Stage 3 ECU software with upgraded supporting hardware to deliver significant increases in horsepower and torque across different fuel octane levels.
On 93-octane fuel, the tuned calibration produces 676 wheel horsepower and 639 lb-ft of wheel torque, equivalent to 824 flywheel horsepower and 779 lb-ft of flywheel torque. This represents gains of 89 WHP and 74 lb-ft of wheel torque, along with 109 flywheel horsepower and 90 lb-ft of flywheel torque over stock output.
With 100-octane fuel, output increases to 723 wheel horsepower and 652 lb-ft of wheel torque, equivalent to 882 flywheel horsepower and 795 lb-ft of flywheel torque. This represents gains of 136 WHP and 87 lb-ft of wheel torque, along with 166 flywheel horsepower and 106 lb-ft of flywheel torque over stock output.
CarBahn EVO Intelligent software seamlessly adapts to various fuel octane levels, optimizing performance without compromising safety. It retains existing safety features while adding extra protection as needed.
The Power Package includes Stage 3 software, 3.5-bar MAP sensors, a lightweight CarBahn heat exchanger, CSF intercoolers, and CarBahn high-flow air filters. The factory top-speed governor is also removed.
Performance Specifications
Stock – 93 Octane
- Wheel Horsepower: 587 WHP
- Wheel Torque: 565 lb-ft
- Flywheel Horsepower: 716 HP
- Flywheel Torque: 689 lb-ft
Tuned – 93 Octane
- Wheel Horsepower: 676 WHP
- Wheel Torque: 639 lb-ft
- Flywheel Horsepower: 824 HP
- Flywheel Torque: 779 lb-ft
Delta – 93 Octane
- Wheel Horsepower Gain: 89 WHP
- Wheel Torque Gain: 74 lb-ft
- Flywheel Horsepower Gain: 109 HP
- Flywheel Torque Gain: 90 lb-ft
Tuned – 100 Octane
- Wheel Horsepower: 723 WHP
- Wheel Torque: 652 lb-ft
- Flywheel Horsepower: 882 HP
- Flywheel Torque: 795 lb-ft
Delta – 100 Octane
- Wheel Horsepower Gain: 136 WHP
- Wheel Torque Gain: 87 lb-ft
- Flywheel Horsepower Gain: 166 HP
- Flywheel Torque Gain: 106 lb-ft
Stage 3 Power Package Includes
- 1 × Stage 3 Software
- 2 × 3.5-bar MAP Sensors
- 1 × Lightweight CarBahn Heat Exchanger
- 2 × CSF Intercoolers
- 2 × CarBahn High Flow Air Filters
- Top-speed governor removal
- CarBahn EVO Intelligent software with adaptive fuel-octane optimization
Fitment
Make: BMW
Model(s): M8 and M8 Competition
Vehicle Year(s): 2020, 2021, 2022, 2023, 2024, and 2025
Transmission(s): Automatic
Chassis: F91, F92, and F93
Body Style(s): Coupe, Gran Coupe, and Convertible
Drivetrain(s): xDrive
Part Number: CBF9X-9108
Fits Engines: S63
Installation: Dealer Install Only
This power package is specifically designed for 2020–2025 BMW F91 M8 Convertible, F92 M8 Coupe, and F93 M8 Gran Coupe models, including M8 and M8 Competition variants, equipped with the S63 engine, automatic transmission, and xDrive all-wheel drive.
